Two amethyst cabochons rest on a slim, rhodium-plated 925 silver band with a modern, understated line. The cabochon cut does not scatter the colour into tiny flashes but concentrates it in one smooth surface, so the purple appears deeper and more saturated, shifting in intensity with every movement of the hand. The ring's simple form does not draw attention away from the stone, so it is the stone that catches the eye first.

Only a small share of the rough examined makes it into this piece - what matters is purity of colour and freedom from cracks, so the final selection of amethysts is strict. Good stones with this depth of colour are increasingly hard to find, and prices for silver and precious metals are rising, so buying at this price makes sense today. The band is made of pure, refined sterling silver 925, free of nickel and other allergy-triggering additives, for comfort on sensitive skin. The rhodium layer is hard and scratch-resistant, so the metal's shine lasts long without dulling or tarnishing. The French maker's mark on the piece attests to the origin of the silver.

Amethyst has long been linked with calm and clarity of mind, and in many traditions it was seen as a symbol of balance. That association suits a promise ring well, given as a gesture of closeness. Styled for the office, the ring pairs well with a smooth shirt and a blazer in muted, cool shades of grey, with the purple of the cabochons standing out against that simplicity. Its small size and weight of 2.5 grams make it light to wear, with no weight on the hand through a full working day.